"All right, sir?"
Safe across, Doctor Luke grinned. It was a reaction of relief.
"Whew! Whew!" he whistled. "Try below."
Billy crossed below.
"Don't you think, sir," said he, doubtfully, "that we'd best go back?"
"Do you think so?"
Billy reflected.
"No, sir," said he, flushing.
"Neither do I. Come on."